Abstract

In thirty years the science of elementary particles has made few achievements compared with its unsuccessful essays. The recent works of Schwinger, Tomonaga, Feynman and Dyson, however, have had some success. We have here a hint that progress is being made on the formal side of the discipline—though even this work is profoundly disturbing in some of its purely mathematical aspects. There could be no better time to review the situation from a physical and philosophical standpoint, even if this proves to be an over-ambitions undertaking.